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公开(公告)号：EP3859430A1
公开(公告)日：2021-08-04
申请号：EP19865105.1
申请日：2019-09-27
发明人： OHNISHI, Tomofumi , SANO, Yoshio
摘要： A method for producing an optical component resin including a first pressure-reduction step in which a mixture containing a polyisocyanate component and a polythiol component is disposed under a reduced pressure, a second pressure-reduction step in which a release agent is added after the first pressure-reduction step, and the mixture is further disposed under a reduced pressure, and a polymerization step in which the mixture is polymerized.
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公开(公告)号：EP4056356A1
公开(公告)日：2022-09-14
申请号：EP22160659.3
申请日：2022-03-08
发明人： SANO, Yoshio
摘要： Provided is a technique by which it is possible to reduce the thickness of a polarized lens for spectacles that has a rotationally symmetric aspherical surface formed on an object-side surface thereof, in the same manner as for a normal lens. Provided is a polarized lens for spectacles, including: a first lens substrate (110) having an object-side surface (111) on which a convex surface that is a rotationally symmetric aspherical surface is formed; a second lens substrate (120) having an eyeball-side surface; and a polarized film (130) disposed between the first lens substrate and the second lens substrate and having a convex shape toward the object-side surface, wherein an in-plane distribution of a distance W between the object-side surface of the first lens substrate and the polarized film is concentric with the optical center of the lens and where the distance W is rotational symmetric as well.
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公开(公告)号：EP3950757A1
公开(公告)日：2022-02-09
申请号：EP20778832.4
申请日：2020-03-27
摘要： Provided is a polymerizable composition for optical components, which can prevent the occurrence of coloring while keeping the required strength for optical components when an optical component is produced using the polymerizable composition for optical components.
The polymerizable composition for optical components according to the present embodiment includes a polyisocyanate compound (A) and a polythiol compound (B1) and has an equivalent ratio (A/B1) of 80/100 to 95/100, wherein the equivalent ratio (A/B1) represents a ratio of an equivalent A of the polyisocyanate compound (A) calculated using the molecular weight and the functional group number of the polyisocyanate compound (A) to an equivalent B1 of the polythiol compound (B1) calculated using the molecular weight and the functional group number of the polythiol compound (B1).-
公开(公告)号：EP3778203A1
公开(公告)日：2021-02-17
申请号：EP19774905.4
申请日：2019-03-29
发明人： SANO, Yoshio
摘要： Provided is a method for producing an optical component, the method including a step of polymerizing a polymerizable composition including a polythiol component and a polyisocyanate component in a molding die, wherein the molding die includes a pair of molds and a tape for separating these molds apart and fixing the molds, the tape has a tape substrate and a tacky adhesive layer, and a percentage moisture content in the tacky adhesive layer is 950 ppm by mass or less, and also provided is a molding die tape for a spectacle lens substrate, the molding die tape having a tape substrate and a tacky adhesive layer, wherein a percentage moisture content in the tacky adhesive layer is 950 ppm by mass or less.
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5.发明公开
公开(公告)号：EP3479984A1
公开(公告)日：2019-05-08
申请号：EP17820338.6
申请日：2017-06-30
发明人： SANO, Yoshio , SHIMIZU, Hiroshi
IPC分类号： B29C33/38
摘要： A lens-mold producing method includes a position and posture determining step S101 of specifying positions and postures, in space coordinates, of a first mold having a molding surface R 1 for forming one optical surface of a lens and a second mold having a molding surface R 2 for forming the other optical surface, a mold holding step S102 of rotating and/or inclining, based on the positions and postures in the space coordinates, at least one of the first mold and the second mold, maintaining a rotation angle and/or an inclination angle of a reference plane of the first mold with respect to a reference plane of the second mold, and holding the first mold and the second mold, and an assembling step S103 of arranging the molding surface R 1 of the first mold and the molding surface R 2 of the second mold so as to face each other, fixing outer peripheries of the first mold and the second mold, and assembling a lens mold.
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6.发明公开
公开(公告)号：EP4036137A1
公开(公告)日：2022-08-03
申请号：EP20867624.7
申请日：2020-09-28
发明人： OHNISHI, Tomofumi , SANO, Yoshio
摘要： A polymerizable composition for optical components according to one embodiment of the present disclosure includes a polyiso(thio)cyanate compound (A) having one or more aromatic rings in one molecule, a polythiol compound (B) having three or more mercapto groups in one molecule, and an acidic phosphate ester compound (C), wherein the content of the acidic phosphate ester compound (C) is 0.1 to 3.0 parts by mass with respect to a total amount of 100 parts by mass of the polyiso(thio)cyanate compound (A) and the polythiol compound (B), and wherein the content of a polymerization catalyst is 0.006 parts by mass or less with respect to a total amount of 100 parts by mass of the polyiso(thio)cyanate compound (A) and the polythiol compound (B).
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公开(公告)号：EP3950756A1
公开(公告)日：2022-02-09
申请号：EP20777360.7
申请日：2020-03-27
摘要： Provided is a polymerizable composition for optical components, which can prevent the occurrence of striae while keeping the required strength for optical components even when a thick optical component is produced.
A polymerizable composition for optical components of one embodiment of the present invention is a mixture of a first composition including a polyisocyanate compound (A) and a second composition including a polythiol compound (B1) and a thiol group-containing substance (B2), the polymerizable composition further includes the thiol group-containing substance (B2) showing a peak at a position corresponding to a retention time three minutes or more later from a position of a peak of the polythiol compound (B1) in a chromatogram obtained by analyzing the second composition by high performance liquid chromatography (HPLC) analysis, and the equivalent ratio (A/B1) is 80/100 to 95/100, wherein the equivalent ratio (A/B1) represents a ratio of an equivalent A of the polyisocyanate compound (A) calculated using a molecular weight and a functional group number of the polyisocyanate compound (A) to an equivalent B1 of the polythiol compound (B1) calculated using a molecular weight and a functional group number of the polythiol compound (B1).
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